Selecting a material name for a Skeletal Mesh Sampling region can crash the editor

UE - Niagara - Mar 16, 2022

The editor will crash when clicking on the Material Name selection box a second time. It appears this triggers another selection change with a null input, which crashes the editor. ...

Infinite loop error message does not help and spawns too many messages

UE - Gameplay - Blueprint - Dec 17, 2014

The infinite loop reporter is reporting every infinite loop by popping up a window for each problem loop. So if you have an actor with 3 loops that trigger the infinite loop error and then you have ...

Shipping builds do not execute .exe

After playing with it and attaching in the debugger, it's sitting forever in MigratePreviousEngineIni(). It seems to be looping on DirectoryExists forever, likely here: while(PreviousVersion.GetMi ...

4.14.2 Binary Debug Crash does not show up in Crash Reporter

CrashReporter - Web - Dec 21, 2016

Crashes from 4.14.2 Binary are not populating in Crash Reporter website - [Link Removed] This is not the case in P4 builds. This is a regression from 4.14.1 ...

Low Frequency Crash when rendering a movie in Sequencer

UE - Anim - Sequencer - Feb 10, 2017

Note This is a low frequency 1/3 times attempted. I could not accurately reproduce this crash. Based on crash reporter, this never happened in 4.14 so this is a regression ...

Mesh Decal Material Influced By Emissive In Shader Complexity View Mode

UE - Graphics Features - May 4, 2017

The emissive value influences how a mesh decal material appears in the shader complexity view mode. The value of 1 will register as white and .5 is pink. ...

Cannot navigate through options in combo box

UE - Editor - UI Systems - May 31, 2017

Cannot navigate through options in combo box with the default navigation. This appears to be a regression. Working as expected in 4.15.3 No longer working as expected in 4.16 ...

"Cull Backface" in Cloth Paint is not effective if the back faces are close to the front faces

UE - Simulation - Physics - Character - Jul 6, 2017

When Cloth Painting, "Cull Backfaces" is ineffective when the backface is very close to the face that you are painting on Occurs on? 4.16 - 3466753 - YES 4.17 - 3523593 - YES ...

Viewport Renders black when accessing Toolbar dropdown in Mobile Render Preview

Tools - Jul 11, 2017

Viewport is rendering black when Preview Rendering Level is set to Mobile/HTML5 setting and the user hovers over settings options This is a regression from 4.16.2 ...

Cannot convert Blueprint Function Library inputs to local variables

UE - Gameplay - Blueprint - Sep 11, 2017

When a blueprint function library function has input variables, the input pin cannot be converted to a variable / local variable. Regression: No - same behavior occurs in 4.16.3 ...